PURPOSE: The FFA is a notification that current and developing
hydrometeorological conditions are favorable for flash flooding (see WSOM
E-20 section 2). However, the occurrence of flooding is neither certain
nor imminent.

CHANGES: There have been no programmatic changes to the
flash flood watch program in recent years.

COMMENTS: The FFW should be issued when conditions are favorable
for heavy rainfall which may lead to flash flooding. Besides the
required communications and MND header information, FFAs shall contain
the name of the issuing office, the valid time of the watch, and the affected
geographic areas. The watch area should be described in terms of
well-known river basins, counties, or portions of states. Expected
extent and severity of the event should be described and, since flash flood
safety is a major concern, call-to-action statements should appear in the
watch message.